By playing this game you try to have all foes on one side and all friends on your side.
It doesn't work that well.
My best plus with a civ is +7
Friendship +1
They want friendly relationship +1
We traded recently +1
War against common enemy +2
And a couple I forgot, but it was +7 for a few turns.
Then negative:
Germany covets my lands -1
They denounced us -1
They think we're winning the game blabla -1
They think we taking CS from the -1
They don't like we built wonders they cover -1
We denounced them -1
We told them to not settle close -1
We made an outrageous demand -1
We declared war on them -1
We took their cap -1
and a few more which I don't remember, but it was -14 in total.
Just slightly out of balance, I would say.
How can I improve happy to other Civs from here?
And how can I make Germany hate me more?
Moderator Action: Adjusted the thread title a bit.
It doesn't work that well.
My best plus with a civ is +7
Friendship +1
They want friendly relationship +1
We traded recently +1
War against common enemy +2
And a couple I forgot, but it was +7 for a few turns.
Then negative:
Germany covets my lands -1
They denounced us -1
They think we're winning the game blabla -1
They think we taking CS from the -1
They don't like we built wonders they cover -1
We denounced them -1
We told them to not settle close -1
We made an outrageous demand -1
We declared war on them -1
We took their cap -1
and a few more which I don't remember, but it was -14 in total.
Just slightly out of balance, I would say.

How can I improve happy to other Civs from here?
And how can I make Germany hate me more?
Moderator Action: Adjusted the thread title a bit.